Tuesday, 27 September 2016

The Anatomy of a Flashlight

LENS:

Most torch lenses are made from scratch resistant glass. It’s important to keep
your lens as scratch free as possible because it is the final barrier between
your light source and the world.

Some torches have a raised bevel around the lens to keep debris away; another
option is to keep your torch in a holster, especially if you keep it in a
vehicle where it is bound to roll around.REFLECTOR:

Reflectors come in two types...

-Smooth reflector: Ideal for a long throw, helps direct the light into a strong
spotlight
-Orange Peel reflector (OP): Ideal for a distributed beam with a wide angle.

LED:

The LED is where the light is emitted from and therefore is one of the most
important parts of a torch. A vast majority of high performance LED’s are
manufactured by CREE.

LED lights can vary in colour from “cool white” (the whitest beam) to “neutral
white” (a slightly “warmer” more yellow beam, more ideal for hunting etc where
you need more accurate depth perception at long distances)

New LED technology is constantly developing, you can check out this article for
more information

DRIVER:

The driver is a small transformer that takes the energy from the battery and
makes it into a usable form of power for the LED.

The driver is also responsible for any modes the torch may have, such as SOS
mode, Strobe mode or high, med and low modes.

BATTERY:

Most advanced LED torches are powered by rechargeable lithium batteries.

These batteries come in various sizes with “18650”s being the most popular /
industry standard for most advanced high output devices. They have a high
output, a long run time and can typically be recharged around 500 times.

Protected batteries – Lithium batteries are volatile / can explode if shorted
out in a bad way. “Protected” lithium batteries have an inbuilt protection fuse
that runs down the side of the battery. In the event of a short circuit this
fuse will blow before the battery will have a melt down.

Would you like to purchase high quality batteries at an affordable price? Order
today from klaruslight.co.za

SWITCH:

The switch turns the torch on and off, and also controls the modes (e.g strobe,
high, med & low -for torches that have modes). Most switches are located at
the rear tailcap of the torch, but can also be found towards the front of the
torch handle torch where you would place your thumb.

Most switches are covered with a replaceable rubber membrane that makes them
waterproof and long lasting.

There are two types of switches:

Basic switch: A basic switch simply
works by clicking it on and off. Often you can change output modes on the torch
by turning it on and off a few times.

Memory switch: A memory switch is the
high tech brother of the basic switch.
Often you can program certain commands to turn on certain modes. e.g) hold down
the switch for 2 seconds and it goes straight to strobe etc.